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Veeam Backup Free Edition 9.5
User Guide

How Restore from Storage Snapshots Works

For restore operations, Veeam Backup Free Edition uses a copy of the volume snapshot, not the volume snapshot itself.

The volume snapshot copy is a read-write clone of the volume snapshot. The volume snapshot copy protects the VMFS volume metadata integrity on the volume snapshot. During file-level restore and Instant VM Recovery, the ESX(i) host to which the volume snapshot is mounted updates VMFS metadata on the volume snapshot. Use of the volume snapshot copy helps protect the volume snapshot from these changes.

When you restore VM data from storage snapshots, Veeam Backup Free Edition performs the following actions:

  1. The user starts the restore process for some VM on the storage snapshot.
  2. Veeam Backup Free Edition triggers the storage system to create a copy or a clone of this storage snapshot.
  • If you restore several VMs from one storage snapshot, Veeam Backup Free Edition does not create several snapshot copies. Instead, it uses one snapshot copy for restore.
  • If you start several restore operations (for example, Instant VM Recovery and VM guest OS restore) for the same VM from the storage snapshot, Veeam Backup Free Edition creates several snapshot copies and works with them during restore.
  1. The user selects an ESX(i) host in the virtual environment, and the created snapshot copy is presented to this ESX(i) host as a new volume. The ESX(i) host is added to the list of Allowed Servers for the snapshot copy. As a result, the ESX(i) host has access to the snapshot copy and can read and write data to/from it.
  2. Veeam Backup Free Edition makes sure that the IP address of the storage system is in the list of static targets on the ESX(i) host.
  3. The storage system issues an HBA re-scan command to the vCenter Server. Once rescan is finished, the snapshot copy appears in the discovered targets list on the ESX(i) host. After that, the storage system performs re-signature for storage volumes.
  4. The user performs necessary restore operations in the Veeam Backup Free Edition console.
  5. After restore is completed, Veeam Backup Free Edition issues a command to the storage system. The storage system deletes the snapshot copy from the ESX(i) host and performs cleanup operations.

How Restore from Storage Snapshots Works 

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